john deere carb question

[Out plowing]

I have been giving this some thought, but will a Dltx 18 carb be enough carb for my 1937 A with a mid 40’s A crank, .045 over pistons, ported and polished head, and a Johnson cold gas manifold. Should I been looking into getting a 71 Carb or could sticking the nozzle out of a 71 carb into the 18 provide it with enough fuel and air?

 

[2-banger]

i was told to use a 53 all fuel a carb...all fuel was a heavier fuel than gas and they used a bigger nozzle in all fuel carbs

 

[Josh Blackburn]

On a near stock tractor you most likely wont see a difference in the carbs.... 65 Horse A here on the farm dynos the same with 18 Or 71

 

[johndeereman]

only difference between the two is the nozzle in the stem i ran an 18 on my 51 a no problems till i started doing engine work so i bought a 71 worked a little better but was still starving engine so we fixed that lol